题目内容：

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号()，并在其下面写出该加的词。

删除：把多余的词用斜线(＼)划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1. 每处错误及其修改均仅限一词；

2. 只允许修改l0处，多者（从第11处起）不计分。

This morning my friend Mary and me went shopping. She thought it is a good chance to practice Chinese. Mary was happy to talk to the salesgirls, and so did they. She wanted to buy some chicken, so she asked for a salesgirl, “ How much is the cock?” Gentle, the salesgirl answered, “ I’m not sure whether it’s a cock or a hen.” Mary became embarrassing and realized she had made a mistake. All of us laughed include Mary. Then we went to buy some eggs. I asked Mary, “ Do you want buy hens’ sons and daughters?” Mary shouted, “ I can say eggs.” We laughed again. How an interesting shopping experience!